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GPS 1 / SUP 1: It is recommended that you use the NK provided heart rate strap. While other heart rate belts may pair with the unit, the heart rate may still not appear on the main screen. If you cannot get the NK heart rate belt, the Wahoo Tickr model is the best choice (Please Note: not the Tickr X model however).

If you are sure that your belt is paired but is either not showing a heart rate or showing an erratic heart rate, it may be one of a couple issues. First if you are getting “---“ make sure there is enough moisture on the heart rate belt’s rubber contacts against your body. Very dry skin may not be enough to create enough of an electrical connection to get a proper reading. Secondly, if these rubber contacts are dirty, this can also cause a problem. Our suggestion is to use mild soap and water and clean the belt occasionally to help prevent dirt build-up. Finally if neither of these suggestions help with your issue, the problem is most likely related to corrosion in the heart rate belt buckle contacts. Please see the document below to clean these contacts to help restore proper connectivity.

For the best success of pairing your heart rate belt with the SpeedCoach, remove the heart rate buckle from the belt and rub the silver contacts with your thumbs. This should put the heart rate belt into rapid pairing mode. Make sure the SpeedCoach is in pairing mode as well and it should pick up the heart rate belt really quickly. If using your thumbs is not working, then please try replacing the battery in the heart rate belt and try again